| 呋喃树脂用低硫磺酸固化剂的制备及改性研究 |
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| 引用本文： | 曾乐乐,樊丽辉,申延明,李汉锟. 呋喃树脂用低硫磺酸固化剂的制备及改性研究[J]. 铸造, 2012, 61(1): 89-91,96 |
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| 作者姓名： | 曾乐乐 樊丽辉 申延明 李汉锟 |
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| 作者单位： | 1. 沈阳化工大学化学工程学院,辽宁沈阳,110142
2. 沈阳铸造研究所,辽宁沈阳,110022 |
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| 摘 要： | 以二甲苯与浓硫酸为原料制备二甲苯磺酸固化剂,探讨了带水剂对合成反应的影响,并考察了添加无机酸和无机盐对固化剂固化性能的作用.试验结果表明,使用甲苯带水剂后,反应更彻底,游离酸含量降至8％,硫含量降低了20％～30％.添加无机酸、无机盐等材料部分取代磺酸,可提高二甲苯磺酸的固化效果,型砂的抗拉强度高于1.8 MPa.
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| 关 键 词： | 磺酸固化剂 无机盐 无机酸 硫含量 |
Preparation and Modification of Curing Agent with Low Sulfur Content for Furfuran Resin |
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| ZENG Le-le , FAN Li-hui , SHEN Yan-ming , LI Han-kun. Preparation and Modification of Curing Agent with Low Sulfur Content for Furfuran Resin[J]. China Foundry, 2012, 61(1): 89-91,96 |
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| Authors: | ZENG Le-le FAN Li-hui SHEN Yan-ming LI Han-kun |
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| Affiliation: | 1.School of Chemical Engineering,Shenyang University of Chemical Technology,Shenyang 110142,Liaoning,China; 2.Shenyang Research Institute of Foundry,Shenyang 110022,Liaoning,China) |
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| Abstract: | Dimethyl benzene sulfonic acid curing agent was prepared from xylene and strong sulfuric acid.The effect of water-carrying agent on the synthesis and the influence of inorganic acids and inorganic salts on the curing performance of moulding sand were investigated.The results show that toluene could carry most water produced during the synthesis and make synthesis react thoroughly.The prepared dimethyl benzene sulfonic acid curing agent has lower sulfur content of 7%.The partial substitution of sulfonic acid with inorganic acids and inorganic salts improved the curing performance of moulding sand;as a result,the tensile strength of the sand mold was over 1.8 MPa. |
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| Keywords: | sulfonic acid curing agent inorganic salt inorganic acid sulfur content |
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